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Sr./Staff Android Developer

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Oscilar

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Location:
Brazil

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Category:
IT - Software Development

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Contract Type:
Not provided

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Salary:

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Job Description:

Shape the future of trust in the age of AI. At Oscilar, we're building the most advanced AI Risk Decisioning™ Platform. Banks, fintechs, and digitally native organizations rely on us to manage their fraud, credit, and compliance risk with the power of AI. We are seeking a highly skilled Android Developer to join our brilliant team of engineers, data scientists, and security experts. In this role, you will be instrumental in designing, building, and maintaining our core mobile platform for Android devices. Your work will be crucial in ensuring the integrity and accuracy of signal information, helping fintechs manage fraud, credit, and compliance risks effectively. This is not a UI or App development role, this is building SDKs for detecting fraud by analyzing device and behavioral properties. This requires deep understanding of the platform internals.

Job Responsibility:

  • Lead the research, design, prototyping, implementation, and deployment of holistic end-to-end solutions in the Android domain
  • Develop and maintain highly stable, high-performance, and scalable Android client agents that meet the needs of our global enterprise clients
  • Collaborate closely with cross-functional teams, including product management, frontend, and DS, to define technical requirements and ensure smooth integration with other platform components
  • Stay updated on the latest capabilities of Android platforms, cloud technologies, and AI/ML frameworks to enhance our mobile solutions
  • Research and implement new innovations in mobile security as the Android landscape evolves, including popular third-party SDKs and APIs
  • Drive best practices for code quality, testing, and deployment, including continuous integration and continuous deployment (CI/CD) pipelines
  • Mentor junior developers and contribute to the overall growth of the mobile engineering team

Requirements:

  • Strong proficiency in Java and Kotlin for Android development
  • Deep understanding of Android SDK, AOSP internals, and the Android application lifecycle
  • Experience with RESTful APIs, JSON, and integrating mobile applications with backend services
  • Familiarity with cloud computing concepts, data warehousing, and SQL
  • Knowledge of basic machine learning concepts such as supervised and unsupervised learning
  • Experience with version control systems, preferably Git
  • Proficiency in using Android Studio IDE, ADB, emulator etc
  • Excellent problem-solving abilities and attention to detail
  • Strong written and verbal communication skills
  • Ability to work effectively in a collaborative team environment
  • Passion for staying current with the latest Android development trends and best practices
  • Bachelor's degree in Computer Science, Software Engineering, or a related field (or equivalent experience)
  • Minimum 5 years of Android development experience with a proven track record of deploying stable mobile components at scale (1M+ end users)

Nice to have:

  • Experience with fraud prevention, risk management, or fintech applications
  • Familiarity with cloud platforms such as Amazon Web Services (AWS)
  • Contributions to open-source Android projects or relevant work showcased on platforms like GitHub
  • Knowledge of security best practices for mobile applications
What we offer:
  • Competitive salary and equity packages, including a 401k
  • Remote-first culture — work from anywhere
  • 100% Employer covered comprehensive health, dental, and vision insurance with a top tier plan for you and your dependents (US)
  • Unlimited PTO policy
  • AI First company
  • both Co-Founders are engineers at heart
  • and over 50% of the company is Engineering and Product
  • Family-Friendly environment
  • Regular team events and offsites
  • Unparalleled learning and professional development opportunities
  • Making the internet safer by protecting online transactions

Additional Information:

Job Posted:
February 18, 2026

Employment Type:
Fulltime
Work Type:
Remote work
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